World Environment Day is the biggest annual event for positive environmental action. On 5 June every year, Tanzanians join the International community to celebrate the World Environment Day (WED). The purpose of this day's celebration is to provide an opportunity to promote community awareness on environmental issues and to encourage communities to take action to preserve the environment for current well-being and future life. The WED theme for this year is "Beat Plastic Pollution". This theme is encouraging for all stakeholders to unite in combating the challenge plastic pollution.

The national theme governing these celebrations was “Wood Charcoal is Expensive, Use Alternative Cooking Energy”. The purpose of this national mission is to educate and encourage all citizens to use alternative energy to address the challenge of deforestation in the country. In addition, this mission intends to reflect the environmental, economic, and health effects of using wood charcoal in the community.

The series of events on World Environment Day in Tanzania started on May 31, 2018 and ended in June 5, 2018 at Mnazi Mmoja Grounds in Dar es Salaam, Tanzania.The environment day was officiated by the Prime Minister, Hon Kassim Majaliwa and closed by Vice President, Hon Samia S. Hassan. Various directives were given by these leaders to the government ministries and agencies to embrace renewable energy resources in order to protect the environment.

TaTEDO participated in the exhibitions of its sustainable technologies and services offered to the communities through its pavilion at Mnazi Mmoja Grounds. Some of the technologies and services demonstrated to public were use of green charcoal (briquettes), reduce consumption of charcoal by using improved cookstoves, cooking with electricity by using efficient electric cooking appliances, etc.Almost 1000 people visited TaTEDO pavilion including leaders from Government and Non-government organizations, local and foreign diplomats, members of parliament and local people. TaTEDO pavilion received delegations of the Vice President, the Minister for Environment and Union Affairs (VPO), Commissioner of Renewable Energy, National Environment Management Council (NEMC), Rural Energy Agency (REA), Tanzania Bureau of Standards (TBS), Director of Forest and Beekeeping (DFB), Academicians, Civil Societies, etc.

Tanzania has enormous potential for a diversified renewable energy future. Today however, when you talk about energy in Tanzania you’re talking mainly about wood fuels. More than 34% of households in the country have access to electricity, and over 90% of the total energy resources consumed in Tanzania for cooking are firewood and charcoal.

The recently completed market analysis highlighted Tanzania as having enormous potential for electric cooking primarily due to more than 84% of people who rely on unsustainably sourced charcoal and firewood for their cooking needs and staple foods that are highly compatible with battery-supported electricity. Frequent blackouts, voltage fluctuations, and emerging electric cooking market create a significant opportunity for Grid-eCook, whilst the vast off-grid population and an established Solar Home Systems (SHS) offer highly favourable conditions for solar PV- electric cooking.

Tanzania's theme seeks, among other things, to create awareness and take action in protection of its forest vegetation cover and contribution to the climate change. TaTEDO is promoting efficientuse of briquettes on improved cookstoves. Briquettes are environmental friendly in terms of gas emissions. These fuels are used in cooking just as charcoal and firewood. Briquettes also emit less greenhouse gas when burnt. Using briquettes as an alternative energy source reduces wood-cutting that is contributing to deforestation. This allows trees to remain standing as carbon sinks, which prevents further climate change.